Cisco Cisco Firepower Management Center 4000 Entwickleranleitung

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3-23
FireSIGHT eStreamer Integration Guide
 
Chapter 3      Understanding Intrusion and Correlation Data Structures
  Intrusion Event and Metadata Record Types
The following table describes the fields in the Intrusion Event Extra Data record.
Intrusion Event Extra Data Metadata
The eStreamer service transmits the event extra data metadata associated with intrusion event extra data 
records in the Intrusion Event Extra Data Metadata record. The record type is always 
111
.
The event extra data metadata appears in an encapsulated Event Extra Data Metadata data block, which 
always has a data block type value of 
5
. The Event Extra Data data block is a series 2 data block.
If bit 20 is set in the Request Flags field of a request message, you receive the event extra data metadata. 
If you want to receive both intrusion events and event extra data metadata, you must set bit 2 as well. 
See 
. If you enable bit 23, an extended event header is included in the record.
Table 3-11
Intrusion Event Extra Data Data Block Fields 
Field
Data Type
Description
Event Extra Data 
Data Block Type
uint32
Initiates an Event Extra Data data block. This value is always 
4
The block type is a series 2 block; for information see 
Event Extra Data 
Data Block Length
uint32
Length of the data block. Includes the number of bytes of data 
plus the 8 bytes in the two data block header fields.
Device ID
uint32
The managed device identification number.
Event ID
uint32
The event identification number.
Event Second
uint32
UNIX timestamp of the event (seconds since 01/01/1970).
Type
uint32
Identifier for the type of extra data; for example:
  •
1
 - XFF client (IPv4)
  •
2
 - XFF client (IPv6)
  •
9
 - HTTP URI
BLOB Block Type
uint32
Initiates a BLOB data block containing extra data. This value is 
always 
1
. The block type is a series 2 block. 
Length
uint32
Total number of bytes in the BLOB data block.
Extra Data
variable
The content of the extra data. The data type is indicated in the 
Type field. 
Byte
0
1
2
3
Bit
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Header Version (1)
Message Type (4)
Message Length
Record Type (111)
Record Length